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Pancreatic glycogen content in Goto-Kakizaki rats

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In situations of sustained hyperglycemia, much larger amounts of glycogen accumulate in islet B-cells than in other pancreatic cells. The labelling of such a glycogen pool could thus conceivably provide a mean for assessing the relative contribution of insulin-producing cells to the total pancreatic mass. In such a perspective, the present study aims at investigating pancreatic glycogen accumulation in hereditarily diabetic Goto-Kakizaki (GK) rats. When cultured at 30 mM D-glucose in the presence of D-[U-14C]glucose, pancreatic islets from GK rats accumulated 14C-labelled glycogen in a manner comparable to that previously documented in islets from normal rats. Likewise, the glycogen content of the pancreatic gland, relative to the plasma D-glucose concentration, was not different in GK and normal rats. The GK rats thus apparently represent a suitable model for further studies on the in vivo labelling of B-cell glycogen in the perspective of the non-invasive imaging and quantification of the endocrine pancreas.
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Document Type: Research Article

Affiliations: Laboratory of Experimental Medicine, Brussels Free University, Brussels, Belgium

Publication date: January 1, 2001

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  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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